12105634012 has 12 divisors (see below), whose sum is σ = 21208120416. Its totient is φ = 6046171040.

The previous prime is 12105633997. The next prime is 12105634049. The reversal of 12105634012 is 21043650121.

It is a happy number.

It is a super-2 number, since 2×12105634012² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1657393 + ... + 1664680.

It is an arithmetic number, because the mean of its divisors is an integer number (1767343368).

Almost surely, 2^12105634012 is an apocalyptic number.

It is an amenable number.

12105634012 is a deficient number, since it is larger than the sum of its proper divisors (9102486404).

12105634012 is a wasteful number, since it uses less digits than its factorization.

12105634012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3322988 (or 3322986 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The spelling of 12105634012 in words is "twelve billion, one hundred five million, six hundred thirty-four thousand, twelve".